Butt-hook.



L. S. DBNISON.

BUTT HOOK. I APPLICATION FILED MAR. 24, 1910.

Patented Mar. 28, 1911.

Witmwow S PATT FTQE.

LOUIS S. DENISON, OF KELSO, WASHINGTON.

BUTT-HOOK.

Specification of Letters Patent.

Application filed March 24, 1910.

Patented Mar. 28, 1911. Serial No. 551,329.

To all whom it may concern:

Be it known that I, LoUIs S. DENISON, a citizen of the United States,residing at Kelso, in the county of Cowlitz and State of l/Vashington,have invented a new and useful Butt-Hook, of which the following is aspecification.

The device forming the subject matter of this application is thestructure commonly known as a butt hook, employed in logging and similaroperations, among other things, for the purpose of engaging the chokeline which encircles the log.

It is the object of this invention to provide a butt hook having amovable member which may be locked in position adjacent to point of thehook, to maintain the choke line within the contour of the hook.

Another object of the invention is to provide a butt hook of novel andimproved form; to provide a novel reciprocating element adapted to belocked in position upon the hook; and to provide novel means for lockingthe reciprocating member in place.

With the above and other objects in view, the invention consists in thenovel construction and arrangement of parts hereinafter described,delineated in the drawings, and specifically claimed, it beingunderstood, that, within the scope of what is claimed, divers changes inthe form, proportions, size, and minor details of the structure may bemade, without departing from the spirit of the invention or sacrificingany of the advantages thereof.

Similar numerals of reference are em-, ployed to denote correspondingparts throughout the several figures of the drawlngs.

In the accompanying drawings, Figure 1 is a perspective showing the hookin operation; Fig. 2 is a side elevation; Fig. 3 is an edge elevation;Fig. 4 is a detail perspective of the stop; and Fig. 5 is a bottom planof a modified form of ring.

The invention includes as a primary and fundamental element, a hook,upon the shank 1 of which, there is a circumscribing shoulder 2, locatedapproximately opposite to the point 10 of the hook. At the end of theshank 1 there is a head 3 in which is mounted a ring 4.

The shank 1 of the hook is embraced by a split ring 5, having an opening6 between its ends. This split ring 5 is free to rotate upon the shank1, and to slide thereon between the shoulder 2 and the head 3.

A shouldered stop is provided, the shank 7 of which is inserted radiallyto the portion 1 of the hook, between the shoulder 2 and the head 8, andrelatively near to the shoulder 2. This shank 7 may be extended entirelythrough the portion 1 of the hook and retained by means of a bur andwasher 8, or other like means, adapted to retain the shank 7 within theportion 1 of the hook for rotation therein. Upon the exposed end of theshank 7 of the stop, there is a transverse head 9 constituting theshouldered portion of the stop, this shouldered portion being of unequaltransverse dimensions. The dimensions of this head are such that whenthe head is disposed longitudinally from the shank 1 of the hook, thehead will pass readily through the opening 6 in the split ring 5, whenthe said ring is reciprocated between the head 3 and the shoulder 2.II", however, the head 9 is disposed transversely of the shank 1 of thehook, a portion of the head will extend upon either side of the opening6 in the split ring 5, thus preventing the head 9 from entering theopening 6, the stop thus becoming effective as a means for engaging thering 5, to hold the same against reciprocation upon the shank 1 of thehook.

The device is capable of a wide applica' tion. It may be operated asshown in Fig. l of the drawing, wherein the choke line 11, having beenpassed about the log 14, is made to engage the hook. The head 9 of thestop is then disposed longitudinally of the shank 1, and the ring 5 isslid into contact with the shoulder 2, the head, when positioned asabove pointed out, moving readily through the opening 6 in the splitring 5. When the ring 5 has been disposed upon the shoulder 2, the stopis rotated, so that its head 9 will extend transversely of the shank,and upon either side of the opening 6 in the ring 5, thus retaining thering 5 upon the shoulder 2, the ring when thus positioned, obviouslypreventing the choke line 11 from slipping over the point 10 of thehook. It is with the ring at, that the draw line 12 is connected inpractical operation.

It will be seen that it is not absolutely necessary, in order tomaintain the ring 5 upon the shoulder 2, that the stop be rotated so asto dispose its head 9 transversely of the shank 1. For instance, afterthe ring 5 has been brought :into contact with the shoulder 2, the head9 of the stop being disposed longitudinally of the shank 1, the ring 5may be rotated upon the shank 1 so that the opening 6 in the ring 5 willbe out of alinement with the head 9 of the stop. Under suchcircumstances, the ring 5 will obviously be held against the shoulder 2.The foregoing arrangement takes place when a merely temporaryrestraining of the choke line 11 within the contour of the hook isdesired, the rotation of the head 9 to position the same transversely ofthe shank 1, being the more secure and more satisfactory operation.

In cases where it is not desired to hold the choke line 11 within thehook, the ring 5 may be slid into the vicinity of the head 8, and whenthe head 9 of the stop is turned transversely of the shank 1, the ring 5will obviously be held between the stop and the head 3, in a positionremote from the point 10 of the hook, so that the choke line 11 may beinserted into the contour of the hook and withdrawn therefrom at thewill of the operator, the device under such circumstances, exercisingmerely the functions of an ordinary hook.

Sometimes, in order to facilitate the sliding of the ring 5 over thehead 9 of the stop, without accurately alining the opening 6 in the ring5 with the said head 9, I bevel the end faces of the split ring,adjacent the lower surface of the ring, as shown at 15, the bevels at 15obviously serving to guide the ring over the head 9 0f the stop when thering is moved toward the shoulder 2.

Sometimes I employ a solid ring, of the form shown in Fig. 5, instead ofthe split ring shown in the preceding figures. This ring, denotedgenerally by the numeral 100, has an axial opening 101 for the receptionof the shank 1 of the hook. Extended outwardly from this opening 101, isa radially disposed slot 102, the slot 102 having the functionsattributable to the opening 6 of the preceding figures. Opposite edgesof the slot 102 are beveled, as shown at 103, to correspond to the bevel15, seen most clearly in Fig. 3. As shown at 104:, the periphery of thering 100 is left intact across the end of the slot 102. It will be seenthat a ring of the sort denoted by the numeral 100 may, at the pleasureof the manufacturer, replace the ring 5 of the preceding figures,without in any way altering the operation of the device.

Having thus described the invention, what is claimed is A device of theclass described comprising a hook provided with a shoulder; a stopradially mounted for rotation in the hook; and a ring slidable upon thehook and arranged to rest upon the shoulder to close the mouth of thehook; the stop being of unequal transverse dimensions, and the ringhaving an opening which is wider than the smaller transverse dimensionof the stop, and narrower than the larger transverse dimension of thestop whereby the stop may be rotated to bridge the opening and to holdthe ring upon the shoulder.

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signature in the presence of two witnesses.

LOUIS S. DENISON.

Witnesses:

Geo. F. PLAMONDON, E. A. KNIGHT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

